Creasing rule for paperboard blanks



FIG. 1 is a front elevation view of a first embodiment, showing our new design;

FIG. 1A is a perspective view of the embodiment of FIG. 1 shown in a creasing assembly for environment;

FIG. 2 is a front elevation view of a second embodiment, showing our new design;

FIG. 2A is a perspective view of the embodiment of FIG. 2 shown in a creasing assembly for environment;

FIG. 3 is a front elevation view of a third embodiment, showing our new design;

FIG. 3A is a perspective view of the embodiment of FIG. 3 shown in a creasing assembly for environment;

FIG. 4 is a front elevation view of a fourth embodiment, showing our new design;

FIG. 4A is a perspective view of the embodiment of FIG. 4 shown in a creasing assembly for environment;

FIG. 5 is a front elevation view of a fifth embodiment, showing our new design;

FIG. 5A is a perspective view of the embodiment of FIG. 5 shown in a creasing assembly for environment;

FIG. 6 is a front elevation view of a sixth embodiment, showing our new design; and,

FIG. 6A is a perspective view of the embodiment of FIG. 6 shown in a creasing assembly for environment. 

CLAIM The ornamental design for a creasing rule for paperboard blanks, as shown and described. 